WO2015196883A1 - 一种吸收式热泵制冷动力联供方法 - Google Patents

一种吸收式热泵制冷动力联供方法 Download PDF

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WO2015196883A1
WO2015196883A1 PCT/CN2015/079573 CN2015079573W WO2015196883A1 WO 2015196883 A1 WO2015196883 A1 WO 2015196883A1 CN 2015079573 W CN2015079573 W CN 2015079573W WO 2015196883 A1 WO2015196883 A1 WO 2015196883A1
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generator
solution
absorber
steam
working medium
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PCT/CN2015/079573
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English (en)
French (fr)
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周永奎
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周永奎
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Priority to CN201580010304.9A priority Critical patent/CN106170669B/zh
Publication of WO2015196883A1 publication Critical patent/WO2015196883A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/04—Heat pumps of the sorption type

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  • the invention relates to a method for power supply, belonging to the technical field of thermal power.
  • the steam exhaust temperature of the steam power unit generally needs to be higher than the ambient temperature.
  • the pressure must be increased. The pressure increase is more demanding on the pressure design of the steam power machine, and the space for increasing the initial temperature of the steam is also small. Therefore, there is little room for further improvement in the efficiency of the steam power plant.
  • the low-grade heat source cannot provide a high initial temperature, the exhaust steam temperature must be higher than the ambient temperature.
  • the steam-powered mechanical low-grade heat source has low efficiency and low practical value.
  • the problem to be solved is to further increase the initial temperature of the steam power plant or reduce the exhaust steam temperature.
  • the technical scheme adopted by the invention is an absorption heat pump refrigeration power supply method, which adopts a working medium and a substance with a large solubility in a working medium and a working medium to form a working medium pair, and the generator is filled with a working medium to a dilute solution.
  • the heat source is used to heat the generator, so that the working medium in the generator evaporates to the dilute solution to generate working fluid vapor.
  • the first expander is used to expand the working fluid generated by the generator to perform work and depressurize, and the blown steam discharged from the first expander is evaporated by the evaporator to evaporate, so that the refrigerant liquid therein is evaporated into low pressure steam, and the low pressure steam enters.
  • the absorber absorbs heat.
  • the method includes an absorption heat pump refrigeration power cycle, the absorption heat pump refrigeration power cycle including a working fluid cycle and a solution cycle.
  • the working fluid circulation is sequentially performed by the generator, the first expander, the evaporator, the low pressure compressor, the absorber, the solution heat exchanger, the solution pump, and the generator by a pipeline Connected into a loop
  • the solution cycle includes the generator, the solution heat exchanger, the absorber, the solution pump, and the generators are sequentially connected by a conduit into a loop.
  • the method further includes a driving cycle, wherein the driving cycle is sequentially connected by the absorber, the generator, the driving working fluid pump, and the absorber by a pipe into a loop.
  • the working fluid circulation is sequentially connected into a loop by the generator, the first expander, the evaporator, and the absorber, the solution pump, the solution heat exchanger, and the generator through a pipeline.
  • the solution cycle includes the generator, solution heat exchanger, the absorber, the solution pump, the generator, and the tubing connected in a loop.
  • the method further includes a driving cycle in which the driving cycle is sequentially connected by the absorber, the compressor, the generator, the throttle reducing valve, and the absorber into a loop by a pipe.
  • the method further includes an organic Rankine steam power cycle, wherein the organic Rankine steam power cycle is sequentially connected into a loop by the absorber, the expander, the condenser, the working fluid pump, and the absorber.
  • Figure 1 shows a schematic diagram of an absorption heat pump refrigeration power supply system.
  • Figure 2 is a schematic diagram of an absorption heat pump refrigeration power supply system with a low pressure steam compressor.
  • Figure 3 is a schematic diagram of a self-driven absorption heat pump refrigeration power supply system.
  • Figure 4 is a schematic diagram of a self-driven absorption heat pump refrigeration power supply system with a low pressure compressor.
  • Figure 5 is a schematic diagram of a combined absorption heat pump refrigeration power supply system with a low pressure compressor.
  • the absorption heat pump refrigeration power co-supply device is shown in Figure 1.
  • the absorption heat pump refrigeration power system consists of a working fluid cycle and a solution cycle.
  • the working fluid cycle is formed by sequentially connecting the generator 1, the expander 2, the evaporator 3, the absorber 4, the solution pump 6, the solution heat exchanger 5, the generator 1 and the pipeline.
  • the solution circulation includes a generator 1, a solution heat exchanger 5, an absorber 4, a solution pump 6, a generator 1 and a pipeline connected into a circuit; and a working substance and a substance having a large solubility in a working medium and a working medium Yes, the generator 1 is filled with a working medium to a dilute solution, and the working medium is heated by a driving heat source in the generator 1 to generate a high-pressure working medium vapor, and the high-pressure working medium vapor is expanded by the expander 2 to perform work, low pressure pan
  • the steam is discharged into the evaporator 3, and the low-pressure working liquid in the low-pressure flooding vapor absorbs heat in the evaporator 3, and the low-pressure flooding gas is completely vaporized into low-pressure steam, and the low-pressure steam enters the absorber 4 and is absorbed by the solution in the absorber 4.
  • the concentrated solution absorbs the working fluid vapor and becomes a dilute solution, enters the solution heat exchanger 5 and exchanges with the dilute solution from the generator 1 to enter the generator 1 and start the next cycle.
  • the specific method using a suitable pair of heat pump refrigerant, the working medium and its solute are formulated into a certain concentration of working medium to a dilute solution, charged into the generator, driving the heat source to heat the working medium to the dilute solution in the generator
  • the dilute solution is concentrated to produce high-pressure working fluid vapor, and the concentrated solution enters the solution heat exchanger to exchange heat with the solution from the absorber.
  • the high-pressure working fluid vapor is expanded by the expander to produce low-pressure flooding, and the low-pressure flooding enters the evaporator to absorb heat and evaporate.
  • the low-pressure liquid in the vapor is vaporized into low-pressure steam, and the low-pressure steam enters the absorber and is absorbed by the concentrated solution.
  • the absorption heat is exothermic to the environment, and the working medium that absorbs the low-pressure working fluid vapor enters the solution heat exchanger, exchanges heat with the concentrated solution from the generator, and enters the generator to maintain the liquid level in the generator and the absorber.
  • the concentration and temperature are stabilized, and the absorption heat pump refrigeration and power supply cycle are continuously performed.
  • the absorption heat pump refrigeration power supply system of the low pressure compressor is composed of a working fluid cycle and a solution cycle as shown in Fig. 2.
  • the working fluid cycle is composed of a generator 1, an expander 2, an evaporator 3, a low pressure compressor 7, and absorption.
  • the device 4, the solution pump 6, the solution heat exchanger 5, and the generator 1 are sequentially connected by a pipe.
  • the solution cycle includes a generator 1, a solution heat exchanger 5, an absorber 4, a solution pump 6, a generator 1 and a pipe connected in a loop.
  • the working medium and the substance with high solubility in the working medium are combined with the working medium to form a working medium pair, and the generator is filled with the working medium to the dilute solution, and the heat source is used to heat the generator, so that the working medium in the generator is evaporated to the dilute solution.
  • the working medium steam is generated, and the working medium is heated by the driving heat source in the generator 1 to generate high-pressure working medium steam, the high-pressure working medium vapor is expanded by the expander 2 to perform work, the low-pressure partial steam is discharged into the evaporator 3, and the low-pressure flooding is carried out.
  • the low-pressure working fluid evaporates in the evaporator 3, and the low-pressure flooding gas is completely vaporized into low-pressure steam.
  • the low-pressure steam is compressed and pressurized by the compressor 7, and then enters the absorber 4, and is absorbed by the concentrated solution in the absorber 4,
  • the environment is exothermic, the concentrated solution absorbs the working fluid vapor and becomes a dilute solution, enters the solution heat exchanger 5 and exchanges the concentrated solution from the generator 1 to enter the generator 1 and starts the next cycle.
  • the self-driven absorption heat pump refrigeration power supply system is shown in Fig. 3.
  • the system consists of a drive cycle and an absorption heat pump refrigeration power cycle.
  • the absorption heat pump refrigeration power cycle is composed of a working fluid cycle and a solution cycle, and the working fluid cycle is sequentially connected by a generator 1, an expander 2, an evaporator 3, an absorber 4, a solution pump 6, and a solution heat exchanger 5 via a pipeline. composition.
  • the solution circulation includes a generator 1, a solution heat exchanger 5, an absorber 4, a solution pump 6, a generator 1 and a pipeline connected into a circuit; and a working substance and a substance having a large solubility in a working medium and a working medium Yes, the generator 1 is filled with a working medium to a dilute solution, and the working medium is heated by a driving heat source in the generator 1 to generate a high-pressure working medium vapor, a high-pressure working medium.
  • the steam is expanded by the expander 2 to perform work, and the low-pressure partial steam is discharged into the evaporator 3.
  • the low-pressure working fluid in the low-pressure flooding vapor absorbs heat in the evaporator 3, and the low-pressure flooding gas is completely vaporized into low-pressure steam, and the low-pressure steam enters the absorber 4 In the middle, it is absorbed by the concentrated solution in the absorber 4, exothermic to the environment, the concentrated solution absorbs the working fluid vapor and becomes a dilute solution, enters the solution heat exchanger 5 and exchanges the concentrated solution from the generator 1 to enter the generator. 1, start the next cycle.
  • the driving cycle is formed by sequentially connecting the absorber 4 (for the evaporator), the compressor 7, the generator 1 (for the condenser), the throttle reducing valve 8, the absorber (for the evaporator), and the pipe.
  • the driving steam heats the working medium to the dilute solution in the generator 1 used as the condenser, and the self-heating condensation condenses to drive the working fluid, and drives the working fluid to be depressurized by the throttle reducing valve 8 to enter the use as an evaporator.
  • the absorber 4 absorbs heat and evaporates to generate low-pressure driving steam.
  • the low-pressure driving steam is compressed and pressurized by the compressor 7, and then enters the generator 1 as a driving heat source.
  • the self-driven absorption heat pump refrigeration power supply system of the low pressure compressor is shown in Fig. 4.
  • the system consists of a drive cycle and an absorption heat pump refrigeration power cycle.
  • the absorption heat pump refrigeration power cycle is composed of a working fluid cycle and a solution cycle, and the working fluid circulation is composed of a generator 1, an expander 2, an evaporator 3, a compressor 7, an absorber 4, a solution heat exchanger 5, and a solution pump 6.
  • the generator 1 is connected by a pipeline in turn.
  • the solution circulation includes a generator 1, a solution heat exchanger 5, an absorber 4, a solution pump 6, a generator 1 and a pipeline connected into a circuit; and a working substance and a substance having a large solubility in a working medium and a working medium Yes, the generator 1 is filled with a working medium to a dilute solution, and the working medium is heated by a driving heat source in the generator 1 to generate a high-pressure working medium vapor, and the high-pressure working medium vapor is expanded by the expander 2 to perform work, low pressure pan
  • the steam is discharged into the evaporator 3, and the low-pressure working liquid in the low-pressure flooding vapor absorbs heat in the evaporator 3, and the low-pressure flooding gas is completely vaporized into low-pressure steam, and the low-pressure steam is pressurized and compressed by the compressor 7, and enters the absorber 4.
  • the concentrated solution Absorbed by the concentrated solution in the absorber 4, exothermic to the environment, the concentrated solution absorbs the working fluid vapor and becomes a dilute solution, enters the solution heat exchanger 5 and exchanges the concentrated solution from the generator 1 to enter the generator 1, Start the next cycle.
  • the driving cycle is composed of an absorber 4 (as an evaporator), a generator 1 (as a condenser), a driving medium pump 9,
  • the absorber 4 (as an evaporator) is connected in a loop by a pipe.
  • the driving steam heats the working medium to the dilute solution in the generator 1, and the self-heating condensation condenses into a driving working liquid, and the driving working liquid is pressed into the absorber 4 through the working medium pump 9, absorbs heat and evaporates, generates driving steam, and enters into occurrence.
  • the device 1 serves as a driving heat source.
  • the composite absorption heat pump refrigeration power supply device is shown in Figure 5, which is composed of an organic Rankine steam power cycle and an absorption heat pump refrigeration power cycle.
  • the absorption heat pump refrigeration power system is composed of a working fluid cycle and a solution cycle, and the working fluid is cycled by the generator 1, the expander 2, the evaporator 3, the absorber 4, the solution pump 6, the solution heat exchanger 5, and the generator 1 And the pipeline is connected in turn.
  • the solution cycle includes a generator (1), a solution heat exchanger (5), an absorber (4), a solution pump (6), a generator (1), and a pipe connected into a circuit; using a working medium and a working medium
  • the substance with high solubility forms a working medium pair with the working medium
  • the generator 1 is filled with a working medium to a dilute solution, and the working medium to the dilute solution is heated by the driving heat source in the generator 1, generating high-pressure working medium steam, high-pressure working medium.
  • the steam is expanded by the expander 2 to perform work, and the low-pressure partial steam is discharged into the evaporator 3.
  • the low-pressure working fluid in the low-pressure flooding vapor absorbs heat in the evaporator 3, and the low-pressure flooding gas is completely vaporized into low-pressure steam, and the low-pressure steam enters the absorber 4 In the middle, it is absorbed by the concentrated solution in the absorber 4, exothermic to the environment, and the concentrated solution absorbs the working fluid vapor to become a dilute solution, and is pumped into the solution heat exchanger 5 via the solution pump 6 to exchange with the concentrated solution from the generator 1. After heat, enter generator 1 and start the next cycle.
  • the organic Rankine steam power cycle is formed by sequentially connecting the absorber 4, the expander 10, the condenser 11, the working fluid pump 12, and the absorber 4 serving as a steam generator serving as a steam generator.
  • the power medium liquid absorbs heat in the absorber 4 used as a steam generator to generate working medium steam, and the working medium vapor is expanded by the expander 10 to perform work decompression, and the spent steam is cooled by the condenser 11 to become a working liquid and a working medium.
  • the liquid is pumped through the working fluid pump into the absorber 4 serving as an evaporator, and the next cycle is started.

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  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

一种吸收式热泵制冷动力联供方法，采用工质和在工质中溶解度大的物质与工质组成工质对，在发生器(1)中充装入工质对稀溶液，采用热源对发生器(1)加热，使发生器(1)中工质对稀溶液蒸发产生工质蒸汽，利用第一膨胀机(2)使发生器(1)产生的工质蒸汽膨胀做功并减压，第一膨胀机(2)排出的泛汽经蒸发器(3)吸热蒸发，使其中的制冷剂液体蒸发为低压蒸汽，低压蒸汽进入吸收器(4)吸收放热。该蒸汽动力装置可以大幅提高初温，降低排汽温，从而大幅度提高了蒸汽动力装置的效率，利用吸附热制取驱动热源，可实现系统自驱动。

Description

一种吸收式热泵制冷动力联供方法 技术领域
本发明涉及一种动力提供的方法，属热动力技术领域。
背景技术
一般的蒸汽类动力输出装置(蒸汽机、汽轮机),蒸汽膨胀做功的热效率受初温、初压、排汽温度、排汽压力的影响。
当初温不变时，温差越高，效率越高。初压越高、效率越高。当初温不变时，排汽温度越低，效率越高；排汽压力越低，效率越高。
由于蒸汽动力装置膨胀做功会产生泛汽，需将泛汽冷凝成工质液体才能使循环进行下去。所以蒸汽动力装置的排汽温度一般需高于环境温度。此外，提高蒸汽动力装置的初温，必须提高其压力，压力提高对蒸汽动力机械的耐压设计要求更高，目前提高蒸汽初温的空间也较小。所以，水蒸汽动力装置的效率进一步提升的空间已很小。
其次，由于低品位热源无法提供较高的初温，排汽温度又必须高于环境温度，采用低品位热源的蒸汽动力机械效率低，实用价值低。
发明内容
本发明的目的是提供一种更高效的动力提供方法。要解决的问题是：进一步提高蒸汽动力装置的初温或者降低排汽温度。
本发明采用的技术方案：一种吸收式热泵制冷动力联供方法，采用工质和在工质中溶解度大的物质与工质组成工质对，在发生器中充装入工质对稀溶液，采用热源对发生器加热，使发生器中工质对稀溶液蒸发产生工质蒸汽， 利用第一膨胀机使发生器产生的工质蒸汽膨胀做功并减压，所述第一膨胀机排出的泛汽经蒸发器吸热蒸发，使其中的制冷剂液体蒸发为低压蒸汽，低压蒸汽进入吸收器吸收放热。
进一步地，所述方法包括吸收式热泵制冷动力循环，所述吸收式热泵制冷动力循环包括工质循环和溶液循环。
进一步地，所述工质循环由所述发生器、所述第一膨胀机、所述蒸发器、低压压缩机、所述吸收器、溶液换热器、溶液泵、所述发生器由管道依次连接成回路，所述溶液循环包括所述发生器、溶液换热器、所述吸收器、溶液泵、所述发生器由管道依次连接成回路。
进一步地，所述方法还包括驱动循环，所述驱动循环由所述吸收器、所述发生器、驱动工质泵、所述吸收器由管道依次连接成回路。
进一步地，所述工质循环由所述发生器、所述第一膨胀机、所述蒸发器和所述吸收器、溶液泵、溶液换热器、所述发生器通过管道依次连接成回路，所述溶液循环包括所述发生器、溶液换热器、所述吸收器、溶液泵、所述发生器及管道连接成回路。
进一步地，所述方法还包括驱动循环，所述驱动循环由所述吸收器、压缩机、所述发生器、节流减压阀、吸收器由管道依次连接成回路。
进一步地，所述方法还包括有机朗肯蒸汽动力循环，所述有机朗肯蒸汽动力循环由所述吸收器、膨胀机、冷凝器、工质泵、所述吸收器由管道依次连接成回路。
附图说明
图1所示为吸收式热泵制冷动力联供系统示意图。
图2所示为设低压蒸汽压缩机的吸收式热泵制冷动力联供系统示意图。
图3所示为自驱动吸收式热泵制冷动力联供系统示意图。
图4所示为设低压压缩机的自驱动吸收式热泵制冷动力联供系统示意图。
图5所示为设低压压缩机的复合吸收式热泵制冷动力联供系统示意图。
附图中，各标号所代表的部件列表如下：
1、发生器，2、膨胀机，3、蒸发器，4、吸收器，5、溶液换热器，6、溶液泵，7、低压压缩机，8、节流减压阀，9、驱动工质泵，10、膨胀机，11、冷凝器，12、工质泵。
具体实施方式
以下结合附图对本发明的原理和特征进行描述，所举实例只用于解释本发明，并非用于限定本发明的范围。
吸收式热泵制冷动力联供装置如图1所示，吸收式热泵制冷动力系统由工质循环和溶液循环构成。所述工质循环由发生器1、膨胀机2、蒸发器3、吸收器4、溶液泵6、溶液换热器5、发生器1及管道依次连接而成。所述溶液循环包括发生器1、溶液换热器5、吸收器4、溶液泵6、发生器1及管道连接成回路；采用工质和在工质中溶解度大的物质与工质组成工质对，在发生器1中充装入工质对稀溶液，工质对稀溶液在发生器1中被驱动热源加热，产生高压工质蒸汽，高压工质蒸汽经膨胀机2膨胀做功，低压泛汽排入蒸发器3，低压泛汽中的低压工质液体在蒸发器3中吸热蒸发，低压泛汽全部汽化为低压蒸汽，低压蒸汽进入吸收器4中，被吸收器4中的溶液吸收，向环境放热，浓溶液吸收工质蒸汽后变成稀溶液，进入溶液换热器5与来自发生器1的稀溶液进行换热后进入发生器1，开始下一循环。具体方法：采用合适的热泵制冷工质对，将工质及其溶质配制成一定浓度的工质对稀溶液，充装入发生器中，驱动热源对发生器中的工质对稀溶液进行加热，稀溶液浓缩，产生高压工质蒸汽，浓溶液进入溶液换热器，与来自吸收器的溶液换热后进 入吸收器；高压工质蒸汽经膨胀机膨胀做功后产生低压泛汽，低压泛汽进入蒸发器吸热蒸发，泛汽中的低压液体蒸发汽化为低压蒸汽，低压蒸汽进入吸收器被浓溶液吸收，吸收热向环境放热，吸收了低压工质蒸汽的工质对稀溶液进入溶液换热器，与来自发生器的浓溶液换热后进入发生器，维持发生器和吸收器中的液位、浓度和温度的稳定，实现吸收式热泵制冷与动力联供循环的连续进行。
设低压压缩机的吸收式热泵制冷动力联供系统如图2，由工质循环和溶液循环构成，所述工质循环由发生器1、膨胀机2、蒸发器3、低压压缩机7、吸收器4、溶液泵6、溶液换热器5、发生器1经管道依次连接组成。所述溶液循环包括发生器1、溶液换热器5、吸收器4、溶液泵6、发生器1及管道连接成回路。采用工质和在工质中溶解度大的物质与工质组成工质对，在发生器中充装入工质对稀溶液，采用热源对发生器加热，使发生器中工质对稀溶液蒸发产生工质蒸汽，工质对稀溶液在发生器1中被驱动热源加热，产生高压工质蒸汽，高压工质蒸汽经膨胀机2膨胀做功，低压泛汽排入蒸发器3，低压泛汽中的低压工质液体在蒸发器3中吸热蒸发，低压泛汽全部汽化为低压蒸汽，低压蒸汽经压缩机7压缩加压后进入吸收器4中，被吸收器4中的浓溶液吸收，向环境放热，浓溶液吸收工质蒸汽后变成稀溶液，进入溶液换热器5与来自发生器1的浓溶液进行换热后进入发生器1，开始下一循环。
自驱动吸收式热泵制冷动力联供系统如图3，该系统由驱动循环和吸收式热泵制冷动力循环组成。吸收式热泵制冷动力循环由工质循环和溶液循环构成，所述工质循环由发生器1、膨胀机2、蒸发器3、吸收器4、溶液泵6、溶液换热器5经管道依次连接组成。所述溶液循环包括发生器1、溶液换热器5、吸收器4、溶液泵6、发生器1及管道连接成回路；采用工质和在工质中溶解度大的物质与工质组成工质对，在发生器1中充装入工质对稀溶液，工质对稀溶液在发生器1中被驱动热源加热，产生高压工质蒸汽，高压工质 蒸汽经膨胀机2膨胀做功，低压泛汽排入蒸发器3，低压泛汽中的低压工质液体在蒸发器3中吸热蒸发，低压泛汽全部汽化为低压蒸汽，低压蒸汽进入吸收器4中，被吸收器4中的浓溶液吸收，向环境放热，浓溶液吸收工质蒸汽后变成稀溶液，进入溶液换热器5与来自发生器1的浓溶液进行换热后进入发生器1，开始下一循环。
驱动循环由吸收器4(作蒸发器)、压缩机7、发生器1(作冷凝器)、节流减压阀8、吸收器(作蒸发器)及管道依次连接而成。驱动蒸汽在用作冷凝器的发生器1中对工质对稀溶液加热，自身放热凝结成驱动工质液体，驱动工质液体经节流减压阀8减压，进入用作蒸发器的吸收器4，吸热蒸发，产生低压驱动蒸汽，低压驱动蒸汽经压缩机7压缩加压，再进入发生器1作驱动热源。
设低压压缩机的自驱动吸收式热泵制冷动力联供系统如图4，该系统由驱动循环和吸收式热泵制冷动力循环组成。吸收式热泵制冷动力循环由工质循环和溶液循环构成，所述工质循环由发生器1、膨胀机2、蒸发器3、压缩机7、吸收器4、溶液换热器5、溶液泵6、发生器1经管道依次连接而成。所述溶液循环包括发生器1、溶液换热器5、吸收器4、溶液泵6、发生器1及管道连接成回路；采用工质和在工质中溶解度大的物质与工质组成工质对，在发生器1中充装入工质对稀溶液，工质对稀溶液在发生器1中被驱动热源加热，产生高压工质蒸汽，高压工质蒸汽经膨胀机2膨胀做功，低压泛汽排入蒸发器3，低压泛汽中的低压工质液体在蒸发器3中吸热蒸发，低压泛汽全部汽化为低压蒸汽，低压蒸汽经压缩机7加压压缩，进入吸收器4中，被吸收器4中的浓溶液吸收，向环境放热，浓溶液吸收工质蒸汽后变成稀溶液，进入溶液换热器5与来自发生器1的浓溶液进行换热后进入发生器1，开始下一循环。
驱动循环由吸收器4(作蒸发器)、发生器1(作冷凝器)、驱动工质泵9、 吸收器4(作蒸发器)由管道依次连接成回路。驱动蒸汽在发生器1中对工质对稀溶液加热，自身放热凝结成驱动工质液体，驱动工质液体经工质泵9压入吸收器4，吸热蒸发，产生驱动蒸汽，进入发生器1作驱动热源。
复合吸收式热泵制冷动力联供装置如图5所示，由有机朗肯蒸汽动力循环和吸收式热泵制冷动力循环复合而成。吸收式热泵制冷动力系统由工质循环和溶液循环构成，所述工质循环由发生器1、膨胀机2、蒸发器3、吸收器4、溶液泵6、溶液换热器5、发生器1及管道依次连接而成。所述溶液循环包括发生器(1)、溶液换热器(5)、吸收器(4)、溶液泵(6)、发生器(1)及管道连接成回路；采用工质和在工质中溶解度大的物质与工质组成工质对，在发生器1中充装入工质对稀溶液，工质对稀溶液在发生器1中被驱动热源加热，产生高压工质蒸汽，高压工质蒸汽经膨胀机2膨胀做功，低压泛汽排入蒸发器3，低压泛汽中的低压工质液体在蒸发器3中吸热蒸发，低压泛汽全部汽化为低压蒸汽，低压蒸汽进入吸收器4中，被吸收器4中的浓溶液吸收，向环境放热，浓溶液吸收工质蒸汽后变成稀溶液，经溶液泵6泵入溶液换热器5与来自发生器1的浓溶液进行换热后进入发生器1，开始下一循环。
有机朗肯蒸汽动力循环由用作蒸汽发生器的吸收器4、膨胀机10、冷凝器11、工质泵12、用作蒸汽发生器的吸收器4经管道依次连接而成。动力工质液体在用作蒸汽发生器的吸收器4中吸收热量，产生工质蒸汽，工质蒸汽经膨胀机10膨胀做功减压，乏汽经冷凝器11冷却，成为工质液体，工质液体经工质泵泵入用作蒸发器的吸收器4，开始下一循环。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

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  1. 一种吸收式热泵制冷动力联供方法，其特征在于：所述方法采用工质和在工质中溶解度大的物质与工质组成工质对，在发生器中充装入工质对稀溶液，采用热源对发生器加热，使发生器中工质对稀溶液蒸发产生工质蒸汽，利用第一膨胀机(2)使发生器(1)产生的工质蒸汽膨胀做功并减压，所述第一膨胀机(2)排出的泛汽经蒸发器(3)吸热蒸发，使其中的制冷剂液体蒸发为低压蒸汽，低压蒸汽进入吸收器(4)吸收放热。
  2. 如权利要求1所述的吸收式热泵制冷动力联供方法，其特征在于：所述方法包括吸收式热泵制冷动力循环，所述吸收式热泵制冷动力循环包括工质循环和溶液循环。
  3. 如权利要求2所述的吸收式热泵制冷动力联供方法，其特征在于：所述工质循环由所述发生器(1)、所述第一膨胀机(2)、所述蒸发器(3)、低压压缩机(7)、所述吸收器(4)、溶液换热器(5)、溶液泵(6)、所述发生器(1)由管道依次连接成回路，所述溶液循环包括所述发生器(1)、溶液换热器(5)、所述吸收器(4)、溶液泵(6)、所述发生器(1)由管道依次连接成回路。
  4. 如权利要求3所述的吸收式热泵制冷动力联供方法，其特征在于：所述方法还包括驱动循环，所述驱动循环由所述吸收器(4)、所述发生器(1)、驱动工质泵(9)、所述吸收器(4)由管道依次连接成回路。
  5. 如权利要求2所述的吸收式热泵制冷动力联供方法，其特征在于：所述工质循环由所述发生器(1)、所述第一膨胀机(2)、所述蒸发器(3)和所述吸收器(4)、溶液泵(6)、溶液换热器(5)、所述发生器(1)通过管道依次连接成回路，所述溶液循环包括所述发生器(1)、溶液换热器(5)、所述吸收器(4)、溶液泵(6)、所述发生器(1)及管道连接成回路。
  6. 如权利要求5所述的吸收式热泵制冷动力联供方法，其特征在于：所述方法还包括驱动循环，所述驱动循环由所述吸收器(4)、压缩机(7)、所述发生器(1)、节流减压阀(8)、吸收器(4)由管道依次连接成回路。
  7. 如权利要求5所述的吸收式热泵制冷动力联供方法，其特征在于：所述方法还包括有机朗肯蒸汽动力循环，所述有机朗肯蒸汽动力循环由所述吸收 器(4)、膨胀机(10)、冷凝器(11)、工质泵(12)、所述吸收器(4)由管道依次连接成回路。
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